# algorithm-base **大家刚开始刷题时，会有不知道该从何刷起，也看不懂别人题解的情况** **不要着急，这是正常的。** **当你刷题一定数量之后，你就会有自己的刷题思维。** **知道这个题目属于何种类型，使用什么解题方法。** **刷题速度也会大幅提升。** **我现在想做的就是尽量把一些基础但很经典的问题细化，理清逻辑。** **为后面的师弟师妹提供一丢丢帮助**。 **毕竟刚开始刷题时，不知道从哪开始和看不懂题解，是很打击自信心的，** **所以我就想着帮助大家尽快度过这段时期，让刷题初期的你对刷题没有那么排斥** **所以基地里的题解都尽量用动画模拟，加深大家对题目的理解。往下看吧** > **PS：基地的所有代码均在刷题网站 AC 大家可以放心食用** **如果阅读时，发现错误，或者动画不可以显示的问题可以添加我微信好友 [tan45du_one](https://raw.githubusercontent.com/tan45du/tan45du.github.io/master/个人微信.15egrcgqd94w.jpg) ，备注 github + 题目 + 问题 向我反馈** **如果老哥觉得仓库很用心的话，麻烦老哥点个 star ，这也是我一直更新下去的动力！感谢支持。** **感谢支持，该仓库会一直维护，希望对各位有一丢丢帮助，另外给刚开始刷题，但是不知道从哪里开始刷的同学，整理了一份[刷题大纲](https://mp.weixin.qq.com/s/fTMzLrv5Ou2Xf3_br80J0g)，可以先按这个顺序刷，刷完之后应该就能入门了。** **另外想要进阶的老哥可以看下我之前看过的这个谷歌大神的刷题笔记。** **刷题笔记**：链接：https://pan.baidu.com/s/1y5u5uzMhdbbzTq6wsrKSKA 提取码：chef **希望手机阅读的同学可以来我的 [公众号：袁厨的算法小屋](https://raw.githubusercontent.com/tan45du/test/master/微信图片_20210320152235.2pthdebvh1c0.png) 两个平台同步，想要和题友一起刷题，互相监督的同学，可以在我的小屋点击[刷题小队](https://raw.githubusercontent.com/tan45du/test/master/微信图片_20210320152235.2pthdebvh1c0.png)进入。**
### 📢数据结构（前置知识） - [【动画模拟】哈希表详解，万字长文](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/Hash%E8%A1%A8%E7%9A%84%E9%82%A3%E4%BA%9B%E4%BA%8B.md) - [【动画模拟】栈和队列详解](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E5%85%B3%E4%BA%8E%E6%A0%88%E5%92%8C%E9%98%9F%E5%88%97%E7%9A%84%E9%82%A3%E4%BA%9B%E4%BA%8B.md) - [【绘图解析】链表详解](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E5%85%B3%E4%BA%8E%E9%93%BE%E8%A1%A8%E7%9A%84%E9%82%A3%E4%BA%9B%E4%BA%8B.md) - [【绘图描述】递归详解](https://mp.weixin.qq.com/s/A4xG9IbQUjFwQoy9YcneCw) ### 🔋字符串匹配算法 - [【动画模拟】字符串匹配 BF 算法](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/BF%E7%AE%97%E6%B3%95.md) - [【动画模拟】字符串匹配 BM 算法](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/BM.md) - [【动画模拟】字符串匹配 KMP 算法](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/KMP.md) ### 🧮排序算法 - [【动画模拟】冒泡排序](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E5%86%92%E6%B3%A1%E6%8E%92%E5%BA%8F.md) - [【动画模拟】简单选择排序](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E7%AE%80%E5%8D%95%E9%80%89%E6%8B%A9%E6%8E%92%E5%BA%8F.md) - [【动画模拟】插入排序](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E7%9B%B4%E6%8E%A5%E6%8F%92%E5%85%A5%E6%8E%92%E5%BA%8F.md) - [【动画模拟】希尔排序](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E5%B8%8C%E5%B0%94%E6%8E%92%E5%BA%8F.md) - [【动画模拟】归并排序](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E5%BD%92%E5%B9%B6%E6%8E%92%E5%BA%8F.md) - [【动画模拟】快速排序](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E5%BF%AB%E9%80%9F%E6%8E%92%E5%BA%8F.md) - [【动画模拟】堆排序](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E5%A0%86%E6%8E%92%E5%BA%8F.md) - [【动画模拟】计数排序](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E8%AE%A1%E6%95%B0%E6%8E%92%E5%BA%8F.md) ### 🍗排序算法秒杀题目 - [【动画模拟】荷兰国旗](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E8%8D%B7%E5%85%B0%E5%9B%BD%E6%97%97.md) - [【反证解决】数组合成最小的数，最大数](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E5%90%88%E6%88%90.md) - [【动画模拟】逆序对问题](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E9%80%86%E5%BA%8F%E5%AF%B9%E9%97%AE%E9%A2%98.md) - [【动画模拟】翻转对问题](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84%E5%92%8C%E7%AE%97%E6%B3%95/%E7%BF%BB%E8%BD%AC%E5%AF%B9.md) - [【动画模拟】链表插入排序](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/leetcode147%E5%AF%B9%E9%93%BE%E8%A1%A8%E8%BF%9B%E8%A1%8C%E6%8F%92%E5%85%A5%E6%8E%92%E5%BA%8F.md) ### 🍖数组篇 - [【动画模拟】leetcode 1 两数之和](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/leetcode1%E4%B8%A4%E6%95%B0%E4%B9%8B%E5%92%8C.md) - [【动画模拟】leetcode 27 移除元素](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/leetcode27%E7%A7%BB%E9%99%A4%E5%85%83%E7%B4%A0.md) - [【动画模拟】leetcode 41 缺失的第一个正数](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/leetcode41%E7%BC%BA%E5%A4%B1%E7%9A%84%E7%AC%AC%E4%B8%80%E4%B8%AA%E6%AD%A3%E6%95%B0.md) - [【动画模拟】leetcode 485 最大连续 1 的个数](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/leetcode485%E6%9C%80%E5%A4%A7%E8%BF%9E%E7%BB%AD1%E7%9A%84%E4%B8%AA%E6%95%B0.md) - [【绘图描述】leetcode 1052 爱生气的书店老板](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/leetcode1052%E7%88%B1%E7%94%9F%E6%B0%94%E7%9A%84%E4%B9%A6%E5%BA%97%E8%80%81%E6%9D%BF.md) - [【动画模拟】剑指offer 3 数组中重复的数字](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/%E5%89%91%E6%8C%87offer3%E6%95%B0%E7%BB%84%E4%B8%AD%E9%87%8D%E5%A4%8D%E7%9A%84%E6%95%B0.md) - [【动画模拟】leetcode 219 数组中重复元素2](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/leetcode219%E6%95%B0%E7%BB%84%E4%B8%AD%E9%87%8D%E5%A4%8D%E5%85%83%E7%B4%A02.md) - [【动画模拟】leetcode 560 和为K的子数组](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/leetcode560%E5%92%8C%E4%B8%BAK%E7%9A%84%E5%AD%90%E6%95%B0%E7%BB%84.md) - [【绘图描述】leetcode 66 加一](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/leetcode66%E5%8A%A0%E4%B8%80.md) - [【动画模拟】leetcode 75 颜色分类](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/leetcode75%E9%A2%9C%E8%89%B2%E5%88%86%E7%B1%BB.md) - [【动画模拟】leetcode 54 螺旋矩阵](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/leetcode54%E8%9E%BA%E6%97%8B%E7%9F%A9%E9%98%B5.md) - [【动画模拟】leetcode 59 螺旋矩阵2](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/leetcode59%E8%9E%BA%E6%97%8B%E7%9F%A9%E9%98%B52.md) ### 🦞求和问题 - [【动画模拟】leetcode 01 两数之和](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%B1%82%E5%92%8C%E9%97%AE%E9%A2%98/%E4%B8%A4%E6%95%B0%E4%B9%8B%E5%92%8C.md) - [【动画模拟】leetcode 15 三数之和](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%B1%82%E5%92%8C%E9%97%AE%E9%A2%98/%E4%B8%89%E6%95%B0%E4%B9%8B%E5%92%8C.md) - [【动画模拟】leetcode 18 四数之和](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%B1%82%E5%92%8C%E9%97%AE%E9%A2%98/%E5%9B%9B%E6%95%B0%E4%B9%8B%E5%92%8C.md) ### 🍓求次数问题 - [【动画模拟】leetcode 136 只出现一次的数](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%B1%82%E6%AC%A1%E6%95%B0%E9%97%AE%E9%A2%98/%E5%8F%AA%E5%87%BA%E7%8E%B0%E4%B8%80%E6%AC%A1%E7%9A%84%E6%95%B0.md) - [【动画模拟】leetcode 137 只出现一次的数字 II](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%B1%82%E6%AC%A1%E6%95%B0%E9%97%AE%E9%A2%98/%E5%8F%AA%E5%87%BA%E7%8E%B0%E4%B8%80%E6%AC%A1%E7%9A%84%E6%95%B02.md) - [【动画模拟】leetcode 260 只出现一次的数字 III](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%B1%82%E6%AC%A1%E6%95%B0%E9%97%AE%E9%A2%98/%E5%8F%AA%E5%87%BA%E7%8E%B0%E4%B8%80%E6%AC%A1%E7%9A%84%E6%95%B03.md) ### 🍅链表篇 - [【动画模拟】剑指 offer 2 倒数第 k 个节点](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/%E5%89%91%E6%8C%87offer2%E5%80%92%E6%95%B0%E7%AC%ACk%E4%B8%AA%E8%8A%82%E7%82%B9.md) - [【动画模拟】面试题 02.03. 链表中间节点](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/%E9%9D%A2%E8%AF%95%E9%A2%98%2002.03.%20%E9%93%BE%E8%A1%A8%E4%B8%AD%E9%97%B4%E8%8A%82%E7%82%B9.md) - [【动画模拟】剑指 offer 52 两个链表的第一个公共节点](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/%E5%89%91%E6%8C%87Offer52%E4%B8%A4%E4%B8%AA%E9%93%BE%E8%A1%A8%E7%9A%84%E7%AC%AC%E4%B8%80%E4%B8%AA%E5%85%AC%E5%85%B1%E8%8A%82%E7%82%B9.md) - [【动画模拟】leetcode 234 回文链表](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/234.%20%E5%9B%9E%E6%96%87%E9%93%BE%E8%A1%A8.md) - [【动画模拟】leetcode 206 反转链表](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/leetcode206%E5%8F%8D%E8%BD%AC%E9%93%BE%E8%A1%A8.md) - [【动画模拟】leetcode92反转链表2](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/leetcode92%E5%8F%8D%E8%BD%AC%E9%93%BE%E8%A1%A82.md) - [【动画模拟】leetcode 142 环形链表2](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/leetcode142%E7%8E%AF%E5%BD%A2%E9%93%BE%E8%A1%A82.md) - [【动画模拟】leetcode 86 分隔链表](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/leetcode86%E5%88%86%E9%9A%94%E9%93%BE%E8%A1%A8.md) - [【动画模拟】剑指 offer 25 合并两个排序链表](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/%E5%89%91%E6%8C%87Offer25%E5%90%88%E5%B9%B6%E4%B8%A4%E4%B8%AA%E6%8E%92%E5%BA%8F%E7%9A%84%E9%93%BE%E8%A1%A8.md) - [【动画模拟】leetcode 82 删除排序链表的重复元素2](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/leetcode82%E5%88%A0%E9%99%A4%E6%8E%92%E5%BA%8F%E9%93%BE%E8%A1%A8%E4%B8%AD%E7%9A%84%E9%87%8D%E5%A4%8D%E5%85%83%E7%B4%A0II.md) - [【动画模拟】面试题 02.05 链表求和](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/%E9%9D%A2%E8%AF%95%E9%A2%98%2002.05.%20%E9%93%BE%E8%A1%A8%E6%B1%82%E5%92%8C.md) ### 🚁双指针 - [【动画模拟】二分查找详解](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E4%BA%8C%E5%88%86%E6%9F%A5%E6%89%BE%E5%8F%8A%E5%85%B6%E5%8F%98%E7%A7%8D/%E4%BA%8C%E5%88%86%E6%9F%A5%E6%89%BE%E8%AF%A6%E8%A7%A3.md) - [【动画模拟】leetcode 35 搜索插入位置](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E4%BA%8C%E5%88%86%E6%9F%A5%E6%89%BE%E5%8F%8A%E5%85%B6%E5%8F%98%E7%A7%8D/leetcode35%E6%90%9C%E7%B4%A2%E6%8F%92%E5%85%A5%E4%BD%8D%E7%BD%AE.md) - [【动画模拟】leetcode 27 移除元素](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/leetcode27%E7%A7%BB%E9%99%A4%E5%85%83%E7%B4%A0.md) - [【动画模拟】leetcode 209 长度最小的子数组](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%95%B0%E7%BB%84%E7%AF%87/%E9%95%BF%E5%BA%A6%E6%9C%80%E5%B0%8F%E7%9A%84%E5%AD%90%E6%95%B0%E7%BB%84.md) - [【动画模拟】leetcode 141 环形链表](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/leetcode141%E7%8E%AF%E5%BD%A2%E9%93%BE%E8%A1%A8.md) - [【动画模拟】leetcode 160 相交链表](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/leetcode%E7%9B%B8%E4%BA%A4%E9%93%BE%E8%A1%A8.md) - [【动画模拟】leetcode 328 奇偶链表](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E9%93%BE%E8%A1%A8%E7%AF%87/leetcode328%E5%A5%87%E5%81%B6%E9%93%BE%E8%A1%A8.md) ### 🏳‍🌈栈和队列 - [【动画模拟】leetcode 225 队列实现栈](https://github.com/chefyuan/algorithm-base/blob/main/animation-simulation/%E6%A0%88%E5%92%8C%E9%98%9F%E5%88%97/225.%E7%94%A8%E9%98%9F%E5%88%97%E5%AE%9E%E7%8E%B0%E6%A0%88.md) - 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[一个半月拿到阿里字节拼多多美团offer总结](https://mp.weixin.qq.com/s/YziTP0jqYSNS0mP18qGlAw) - [在腾讯连拿六个五星](https://mp.weixin.qq.com/s/tgSgZ-VeZwqyQYiMu2a4HQ) 拼命更新中。。。。。。